Drop dead K8_SCAN_PCI_BUS code. It's a bad idea to scan the PCI busses before
[coreboot.git] / src / mainboard / gigabyte / m57sli / cache_as_ram_auto.c
1 /*
2  * This file is part of the coreboot project.
3  *
4  * Copyright (C) 2007 AMD
5  * Written by Yinghai Lu <yinghailu@amd.com> for AMD.
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; either version 2 of the License, or
10  * (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
20  */
21
22 #define ASSEMBLY 1
23 #define __ROMCC__
24
25 #define RAMINIT_SYSINFO 1
26
27 #define K8_ALLOCATE_IO_RANGE 1
28
29 #define QRANK_DIMM_SUPPORT 1
30
31 #if CONFIG_LOGICAL_CPUS==1
32 #define SET_NB_CFG_54 1
33 #endif
34
35 //used by init_cpus and fidvid
36 #define K8_SET_FIDVID 1
37 //if we want to wait for core1 done before DQS training, set it to 0
38 #define K8_SET_FIDVID_CORE0_ONLY 1
39
40 #if CONFIG_K8_REV_F_SUPPORT == 1
41 #define K8_REV_F_SUPPORT_F0_F1_WORKAROUND 0
42 #endif
43
44 #define DBGP_DEFAULT 7
45  
46 #include <stdint.h>
47 #include <string.h>
48 #include <device/pci_def.h>
49 #include <device/pci_ids.h>
50 #include <arch/io.h>
51 #include <device/pnp_def.h>
52 #include <arch/romcc_io.h>
53 #include <cpu/x86/lapic.h>
54 #include "option_table.h"
55 #include "pc80/mc146818rtc_early.c"
56
57 #if CONFIG_USE_FAILOVER_IMAGE==0
58 #include "pc80/serial.c"
59 #include "arch/i386/lib/console.c"
60 #if CONFIG_USBDEBUG_DIRECT
61 #include "southbridge/nvidia/mcp55/mcp55_enable_usbdebug_direct.c"
62 #include "pc80/usbdebug_direct_serial.c"
63 #endif
64 #include "lib/ramtest.c"
65
66 #include <cpu/amd/model_fxx_rev.h>
67
68 #include "southbridge/nvidia/mcp55/mcp55_early_smbus.c"
69 #include "northbridge/amd/amdk8/raminit.h"
70 #include "cpu/amd/model_fxx/apic_timer.c"
71 #include "lib/delay.c"
72
73 #endif
74
75 #include "cpu/x86/lapic/boot_cpu.c"
76 #include "northbridge/amd/amdk8/reset_test.c"
77 #include "superio/ite/it8716f/it8716f_early_serial.c"
78 #include "superio/ite/it8716f/it8716f_early_init.c"
79
80 #if CONFIG_USE_FAILOVER_IMAGE==0
81
82 #include "cpu/x86/bist.h"
83
84 #include "northbridge/amd/amdk8/debug.c"
85
86 #include "cpu/amd/mtrr/amd_earlymtrr.c"
87
88 #include "northbridge/amd/amdk8/setup_resource_map.c"
89
90 #define SERIAL_DEV PNP_DEV(0x2e, IT8716F_SP1)
91 #define GPIO_DEV PNP_DEV(0x2e, IT8716F_GPIO)
92
93 #include "southbridge/nvidia/mcp55/mcp55_early_ctrl.c"
94
95 static void memreset_setup(void)
96 {
97 }
98
99 static void memreset(int controllers, const struct mem_controller *ctrl)
100 {
101 }
102
103 static inline void activate_spd_rom(const struct mem_controller *ctrl)
104 {
105         /* nothing to do */
106 }
107
108 static inline int spd_read_byte(unsigned device, unsigned address)
109 {
110         return smbus_read_byte(device, address);
111 }
112
113 #include "northbridge/amd/amdk8/amdk8_f.h"
114 #include "northbridge/amd/amdk8/coherent_ht.c"
115
116 #include "northbridge/amd/amdk8/incoherent_ht.c"
117
118 #include "northbridge/amd/amdk8/raminit_f.c"
119
120 #include "lib/generic_sdram.c"
121
122 #include "resourcemap.c" 
123
124 #include "cpu/amd/dualcore/dualcore.c"
125
126 #define MCP55_NUM 1
127 #define MCP55_USE_NIC 1
128 #define MCP55_USE_AZA 1
129
130 #define MCP55_PCI_E_X_0 0
131
132 #define MCP55_MB_SETUP \
133         RES_PORT_IO_8, SYSCTRL_IO_BASE + 0xc0+37, 0x00, 0x68,/* GPIO38 PCI_REQ3 */ \
134         RES_PORT_IO_8, SYSCTRL_IO_BASE + 0xc0+38, 0x00, 0x68,/* GPIO39 PCI_GNT3 */ \
135         RES_PORT_IO_8, SYSCTRL_IO_BASE + 0xc0+39, 0x00, 0x68,/* GPIO40 PCI_GNT2 */ \
136         RES_PORT_IO_8, SYSCTRL_IO_BASE + 0xc0+40, 0x00, 0x68,/* GPIO41 PCI_REQ2 */ \
137         RES_PORT_IO_8, SYSCTRL_IO_BASE + 0xc0+59, 0x00, 0x60,/* GPIP60 FANCTL0 */ \
138         RES_PORT_IO_8, SYSCTRL_IO_BASE + 0xc0+60, 0x00, 0x60,/* GPIO61 FANCTL1 */
139
140 #include "southbridge/nvidia/mcp55/mcp55_early_setup_ss.h"
141 #include "southbridge/nvidia/mcp55/mcp55_early_setup_car.c"
142
143 #include "cpu/amd/car/copy_and_run.c"
144
145 #include "cpu/amd/car/post_cache_as_ram.c"
146
147 #include "cpu/amd/model_fxx/init_cpus.c"
148
149 #include "cpu/amd/model_fxx/fidvid.c"
150
151 #endif
152
153 #if ((CONFIG_HAVE_FAILOVER_BOOT==1) && (CONFIG_USE_FAILOVER_IMAGE == 1)) || ((CONFIG_HAVE_FAILOVER_BOOT==0) && (CONFIG_USE_FALLBACK_IMAGE == 1))
154
155 #include "southbridge/nvidia/mcp55/mcp55_enable_rom.c"
156 #include "northbridge/amd/amdk8/early_ht.c"
157
158
159 static void sio_setup(void)
160 {
161
162         unsigned value;
163         uint32_t dword;
164         uint8_t byte;
165
166         byte = pci_read_config8(PCI_DEV(0, MCP55_DEVN_BASE+1 , 0), 0x7b);
167         byte |= 0x20; 
168         pci_write_config8(PCI_DEV(0, MCP55_DEVN_BASE+1 , 0), 0x7b, byte);
169         
170         dword = pci_read_config32(PCI_DEV(0, MCP55_DEVN_BASE+1 , 0), 0xa0);
171         dword |= (1<<0);
172         pci_write_config32(PCI_DEV(0, MCP55_DEVN_BASE+1 , 0), 0xa0, dword);
173         
174         dword = pci_read_config32(PCI_DEV(0, MCP55_DEVN_BASE+1 , 0), 0xa4);
175         dword |= (1<<16);
176         pci_write_config32(PCI_DEV(0, MCP55_DEVN_BASE+1 , 0), 0xa4, dword);
177 }
178
179 void failover_process(unsigned long bist, unsigned long cpu_init_detectedx)
180 {
181         unsigned last_boot_normal_x = last_boot_normal();
182
183         /* Is this a cpu only reset? or Is this a secondary cpu? */
184         if ((cpu_init_detectedx) || (!boot_cpu())) {
185                 if (last_boot_normal_x) {
186                         goto normal_image;
187                 } else {
188                         goto fallback_image;
189                 }
190         }
191
192         /* Nothing special needs to be done to find bus 0 */
193         /* Allow the HT devices to be found */
194
195         enumerate_ht_chain();
196
197         sio_setup();
198
199         /* Setup the mcp55 */
200         mcp55_enable_rom();
201
202         /* Is this a deliberate reset by the bios */
203         if (bios_reset_detected() && last_boot_normal_x) {
204                 goto normal_image;
205         }
206         /* This is the primary cpu how should I boot? */
207         else if (do_normal_boot()) {
208                 goto normal_image;
209         }
210         else {
211                 goto fallback_image;
212         }
213  normal_image:
214         __asm__ volatile ("jmp __normal_image"
215                 : /* outputs */
216                 : "a" (bist), "b" (cpu_init_detectedx) /* inputs */
217                 );
218
219  fallback_image:
220 #if CONFIG_HAVE_FAILOVER_BOOT==1
221         __asm__ volatile ("jmp __fallback_image"
222                 : /* outputs */
223                 : "a" (bist), "b" (cpu_init_detectedx) /* inputs */
224                 )
225 #endif
226         ;
227 }
228 #endif
229 void real_main(unsigned long bist, unsigned long cpu_init_detectedx);
230
231 void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
232 {
233 #if CONFIG_HAVE_FAILOVER_BOOT==1 
234     #if CONFIG_USE_FAILOVER_IMAGE==1
235         failover_process(bist, cpu_init_detectedx);     
236     #else
237         real_main(bist, cpu_init_detectedx);
238     #endif
239 #else
240     #if CONFIG_USE_FALLBACK_IMAGE == 1
241         failover_process(bist, cpu_init_detectedx);     
242     #endif
243         real_main(bist, cpu_init_detectedx);
244 #endif
245 }
246
247 #if CONFIG_USE_FAILOVER_IMAGE==0
248
249 void real_main(unsigned long bist, unsigned long cpu_init_detectedx)
250 {
251         static const uint16_t spd_addr [] = {
252                         (0xa<<3)|0, (0xa<<3)|2, 0, 0,
253                         (0xa<<3)|1, (0xa<<3)|3, 0, 0,
254 #if CONFIG_MAX_PHYSICAL_CPUS > 1
255                         (0xa<<3)|4, (0xa<<3)|6, 0, 0,
256                         (0xa<<3)|5, (0xa<<3)|7, 0, 0,
257 #endif
258         };
259
260         struct sys_info *sysinfo = (CONFIG_DCACHE_RAM_BASE + CONFIG_DCACHE_RAM_SIZE - CONFIG_DCACHE_RAM_GLOBAL_VAR_SIZE);
261
262         int needs_reset = 0;
263         unsigned bsp_apicid = 0;
264         uint8_t tmp = 0;
265
266         if (bist == 0) {
267                 bsp_apicid = init_cpus(cpu_init_detectedx, sysinfo);
268         }
269
270         pnp_enter_ext_func_mode(SERIAL_DEV);
271         /* The following line will set CLKIN to 24 MHz, external */
272         pnp_write_config(SERIAL_DEV, IT8716F_CONFIG_REG_CLOCKSEL, 0x11);
273         tmp = pnp_read_config(SERIAL_DEV, IT8716F_CONFIG_REG_SWSUSP);
274         /* Is serial flash enabled? Then enable writing to serial flash. */
275         if (tmp & 0x0e) {
276                 pnp_write_config(SERIAL_DEV, IT8716F_CONFIG_REG_SWSUSP, tmp | 0x10);
277                 pnp_set_logical_device(GPIO_DEV);
278                 /* Set Serial Flash interface to 0x0820 */
279                 pnp_write_config(GPIO_DEV, 0x64, 0x08);
280                 pnp_write_config(GPIO_DEV, 0x65, 0x20);
281                 /* We can get away with not resetting the logical device because
282                  * it8716f_enable_dev(SERIAL_DEV, CONFIG_TTYS0_BASE) will do that.
283                  */
284         }
285         it8716f_enable_dev(SERIAL_DEV, CONFIG_TTYS0_BASE);
286         pnp_exit_ext_func_mode(SERIAL_DEV);
287
288         setup_mb_resource_map();
289
290         uart_init();
291         
292         /* Halt if there was a built in self test failure */
293         report_bist_failure(bist);
294
295
296 #if CONFIG_USBDEBUG_DIRECT
297         mcp55_enable_usbdebug_direct(DBGP_DEFAULT);
298         early_usbdebug_direct_init();
299 #endif
300         console_init();
301         print_debug("*sysinfo range: ["); print_debug_hex32(sysinfo); print_debug(",");  print_debug_hex32((unsigned long)sysinfo+sizeof(struct sys_info)); print_debug(")\r\n");
302
303         print_debug("bsp_apicid="); print_debug_hex8(bsp_apicid); print_debug("\r\n");
304
305 #if CONFIG_MEM_TRAIN_SEQ == 1
306         set_sysinfo_in_ram(0); // in BSP so could hold all ap until sysinfo is in ram
307 #endif
308         setup_coherent_ht_domain(); // routing table and start other core0
309
310         wait_all_core0_started();
311 #if CONFIG_LOGICAL_CPUS==1
312         // It is said that we should start core1 after all core0 launched
313         /* becase optimize_link_coherent_ht is moved out from setup_coherent_ht_domain,
314          * So here need to make sure last core0 is started, esp for two way system,
315          * (there may be apic id conflicts in that case)
316          */
317         start_other_cores();
318         wait_all_other_cores_started(bsp_apicid);
319 #endif
320
321         /* it will set up chains and store link pair for optimization later */
322         ht_setup_chains_x(sysinfo); // it will init sblnk and sbbusn, nodes, sbdn
323
324 #if K8_SET_FIDVID == 1
325
326         {
327                 msr_t msr;
328                 msr=rdmsr(0xc0010042);
329                 print_debug("begin msr fid, vid "); print_debug_hex32( msr.hi ); print_debug_hex32(msr.lo); print_debug("\r\n");
330
331         }
332
333         enable_fid_change();
334
335         enable_fid_change_on_sb(sysinfo->sbbusn, sysinfo->sbdn);
336
337         init_fidvid_bsp(bsp_apicid);
338
339         // show final fid and vid
340         {
341                 msr_t msr;
342                 msr=rdmsr(0xc0010042);
343                 print_debug("end   msr fid, vid "); print_debug_hex32( msr.hi ); print_debug_hex32(msr.lo); print_debug("\r\n");
344
345         }
346 #endif
347
348         needs_reset |= optimize_link_coherent_ht();
349         needs_reset |= optimize_link_incoherent_ht(sysinfo);
350         needs_reset |= mcp55_early_setup_x();
351
352         // fidvid change will issue one LDTSTOP and the HT change will be effective too
353         if (needs_reset) {
354                 print_info("ht reset -\r\n");
355                 soft_reset();
356         }
357         allow_all_aps_stop(bsp_apicid);
358
359         //It's the time to set ctrl in sysinfo now;
360         fill_mem_ctrl(sysinfo->nodes, sysinfo->ctrl, spd_addr);
361
362         enable_smbus(); 
363
364         memreset_setup();
365
366         //do we need apci timer, tsc...., only debug need it for better output
367         /* all ap stopped? */
368 //        init_timer(); // Need to use TMICT to synconize FID/VID
369
370         sdram_initialize(sysinfo->nodes, sysinfo->ctrl, sysinfo);
371
372         post_cache_as_ram(); // bsp swtich stack to ram and copy sysinfo ram now
373
374 }
375
376
377 #endif